MPH Manual - Columbia Heating

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Hot Water Connections Use the fittings located on either side in the lower front of the boiler for the hot water return from the system. Hot water applications also require the use of an expansion tank in the system piping, to compensate for fluctuations in the water volume during heating and cooling cycles. NOTE: Do not use lower rear fittings for returns. Feed Water Supply Virtually any unused port on the heat exchanger can be used for the feed water supply. In situations where make up water is needed, the water supply must be treated before it enters the boiler to prevent the formation of scale, and to protect the boiler surfaces from the corrosive effects of oxygenated water. Water treatment and a water treatment program must be adhered to, or the life of the boiler will be effected. If a Condensate Return / Feedwater Tank is used, connect the feedwater source to the float valve on the tank. Return to the section on water treatment later in this manual. Boilers with Coils When ordered with coils, boilers are shipped with the coil(s) assembled to the coil plate(s), and mounted in the boiler. MPH boilers 30 thru 80 HP can be furnished with one or two coils. When making coil connections for twin coil units, manifold indirect water piping using copper tubing and fittings connected in parallel. Pipe the outside coil openings together for cold water inlets, and the inside coil openings for hot water outlets. If necessary, temper the hot water supply by using a mixing valve. Connect the hot water outlet source and a cold water supply line to a mixing valve, to temper the hot water supply to the proper temperature requirements for process equipment. Whenever boilers are supplied with one or two coils, the coils must be covered by a minimum of two inches of water, during normal operation, to allow proper heat transfer through the coil. Adjust all LWCO piping to keep the coil(s) submerged in the event of a low water situation. FUEL CONNECTIONS OIL SUPPLY PIPING Connect burner to oil supply. Refer to fuel unit manufacturer literature for piping, connections, lift and tank installation. If such information is unavailable use the following guidelines: Fuel supply “level with” or “above” burner: A single stage fuel unit connected to the fuel supply with a single supply line is the most common type of installation for these conditions. Manual venting of the fuel oil is usually required on initial start up. Failure to vent air could result in air lock/oil starvation.(One Pipe) Fuel supply below the level of the burner: Use a single stage fuel pump in lift conditions of up to 10 feet and a two stage pump when lift exceeds 10 feet. Both conditions require the use of a return line which purges the fuel pump of air, returning it to the fuel tank. The “by-pass” plug must be inserted into the fuel pump when installing a return line. (Two Pipe) 9 MPH COLUMBIA BOILER COMPANY
Fuel line installation: Consult the burner section of this manual for oil line type and sizing requirements for proper operation. The size of oil lines is extremely important for proper operation. Continuous lengths of heavy wall copper tubing are recommended and should be installed under the floor whenever possible. Fuel lines should not chaff the appliance or building structure. All oil feed lines must be air tight. Use as few fittings as possible when assembling the oil lines. Compression fittings allow more of a chance for air to be introduced into the oil supply and are NOT recommended for use. The slightest air leak, usually caused by loose fittings or bad gaskets, can cause poor starts, smoky starts, sooting of burner parts, inefficient operation, and a dangerous combustion condition. Always install fittings in accessible locations. WARNING: TEFLON ® TAPE SHOULD NEVER BE USED WITH ANY OIL LINE CONNECTIONS. THE USE OF TEFLON ® TAPE ON BURNER COMPONENTS OR OIL SERVICE LINES WILL VOID MOST BURNER WARRANTIES. A vacuum test should be done on all installations to ensure that all fittings are tight and the oil lines are of proper size. Suction vacuums must be held to acceptable limits. This is available with the pump information supplied with the burner. Fuel line valve and filter: (Not supplied) Install two high quality shutoff valves in accessible locations on the oil supply line. Locate one close to the tank and the other close to the burner ahead of the filter. Some filters come with built-in shutoff valves. Install a generous capacity filter inside the building between the fuel tank shutoff and burner. For additional information consult the burner section of this manual. GAS SUPPLY PIPING Contact your local gas company to ensure that adequate gas service is available, and to review applicable installation codes for your area. The minimum gas supply pressure required by the burner is seven inches water column for all Power Flame MPH Series burners. The maximum gas supply pressure to the Power Flame burner is fourteen inches water column. Gas pressure greater than fourteen inches water column will require an additional gas pressure regulator to prevent damage to the primary gas regulator. Gas pressure below the minimum will cause combustion efficiency problems and should be avoided if possible. Low gas pressure may also prevent the boiler from obtaining the desired input rate, which will cause the boiler to be unable to produce the desired output. Consult the factory if your gas supply pressure is not in the recommended range, or for pressure requirements for other burner manufacturers. Use the following tables to determine the size of the main gas line required for the boiler that is being installed. First determine the required input volume of gas needed at the gas manifold, then determine the correct pipe size for the length of run needed. MPH COLUMBIA BOILER COMPANY 10
Page 1: COLUMBIA MULTI-PASS HORIZONTAL BOIL
Page 4 and 5: IMPORTANT 1. Read and familiarize y
Page 6 and 7: INTRODUCTION Series MPH Modified Sc
Page 8 and 9: INSTALLATION BEFORE BEGINNING INSTA
Page 10 and 11: BOILER CONNECTIONS Drains All Colum
Page 14 and 15: REQUIRED INPUT - CUBIC FEET OF GAS
Page 16 and 17: REQUIRED BOILER MAKE-UP AIR OPENING
Page 18 and 19: CAUTION: USE CARE IN HANDLING THESE
Page 20 and 21: STARTING THE BOILER WARNING: NEVER
Page 22 and 23: CONTROL DESCRIPTIONS STEAM BOILERS
Page 24 and 25: HOT WATER BOILERS Aquastat® Contro
Page 26 and 27: Monthly Boiler Check & Maintenance
Page 28 and 29: WATER TREATMENT Proper treatment of
Page 30: Alkalinity The alkalinity of boiler

MPH Manual - Columbia Heating

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